<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>1</title>
</head>
<body>
    <script>
        for(var a = 100;a <= 1000; a++){
            if(a%3==0 && a%5==0){
                document.write(a+"<br>");
            }
        }
    </script>
</body>
</html>